NORSOK Piping fabrication installation flushing testing Rev1Jan96

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1、NORSOKSTANDARDCOMMONREQUIREMENTSPIPINGFABRICATION,INSTALLATION,FLUSHINGANDTESTINGL-CR-004Rev1,January1996PleasenotethatwhilsteveryefforthasbeenmadetoensuretheaccuracyoftheNORSOKstandardsneitherOLFnorTBLoranyoftheirmemberswillassumeliabilityforanyusethereof.Pipingfabrication,installatio

2、n,flushingandtestingL-CR-004Rev1,January1996CONTENTS1FOREWORDERROR!BOOKMARKNOTDEFINED.2SCOPE33NORMATIVEREFERENCES34DEFINITIONSANDABBREVIATIONS44.1Definitions44.2Abbreviations45MATERIALS45.1Colourmarkingofmaterials45.2Materialstorage,handling,recievalandidentificationcontrol46FABRICATIO

3、NOFPIPEWORK56.1Generalrequirements56.2WeldingandNDE56.3Buttweldsfororificeruns56.4Screwedpipework56.5Dimensionaltolerancesforpre-fabricatedpipingassemblies56.6Branchconnectionsandoutlets86.7Pipecoupling87INSTALLATIONOFPIPING87.1Pipeworkerection87.2Flangedjoints87.3Valveandequipmentflan

4、geconnections87.4Gaskets97.5Bolting97.6Pipesupport97.7Globaltolerances,installation108FLUSHING108.1General108.2Hydroflushing108.3Pressurisedairshockblowing118.4Pneumaticflushing119PRESSURETESTS119.1General119.2Testpreparation119.3Testmedia129.4Hydrostatictesting139.5Pneumatictesting139

5、.6Aftercompletionoftest139.7Verificationofcleanliness1410CHEMICALCLEANING1411HOTOILFLUSHING1511.1General1511.2Marking15NORSOKstandard1of27Pipingfabrication,installation,flushingandtestingL-CR-004Rev1,January199611.3Documentation1512SYSTEMCOLOURCODINGOFPIPING1612.1Purpose1612.2Typesofma

6、rkers1612.3Markertexts1612.4Materialofmarkers1612.5Positioningofmarkers1712.6Fluiddescription/colourcodetabulation1812.7Colourcodinginformation.18ANNEXAALTERNATIVETESTMETHODS19A.1SCOPE19A.2GENERAL19A.3ALTERNATIVETESTINGMETHOD19A.4DOCUMENTATION19A.5ALTERNATIVETESTMATRIX20ANNEXBREQUIREME

7、NTSFORINTERNALTREATMENTOFPIPINGAFTERPREFABANDINSTALLATIONBEFORECOMMISSIONING(TABLE1)211ERRATA:CORRECTEDTYPINGERRORINANNEXA.3(APRIL1998)NORSOKstandard2of27Pipingfabrication,installation,flushingandtestingL-CR-004Rev1,January19961FOREWORDNORSOK(ThecompetitivestandingoftheNorwegianoffsh